﻿// The MIT License(MIT)
//
// Copyright(c) 2021 Alberto Rodriguez Orozco & LiveCharts Contributors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

using LiveChartsCore.Drawing;
using LiveChartsCore.Kernel;

namespace LiveChartsCore.Measure;

/// <summary>
/// Defines the stack position.
/// </summary>
/// <typeparam name="TDrawingContext">The type of the drawing context.</typeparam>
public class StackPosition<TDrawingContext>
    where TDrawingContext : DrawingContext
{
    /// <summary>
    /// Gets or sets the stacker.
    /// </summary>
    /// <value>
    /// The stacker.
    /// </value>
    public Stacker<TDrawingContext> Stacker { get; set; } = new();

    /// <summary>
    /// Gets or sets the position.
    /// </summary>
    /// <value>
    /// The position.
    /// </value>
    public int Position { get; set; }

    /// <summary>
    /// Stacks the point.
    /// </summary>
    /// <param name="point">The point.</param>
    /// <returns></returns>
    public double StackPoint(ChartPoint point)
    {
        return Stacker.StackPoint(point, Position);
    }

    /// <summary>
    /// Gets the stack.
    /// </summary>
    /// <param name="point">The point.</param>
    /// <returns></returns>
    public StackedValue GetStack(ChartPoint point)
    {
        var stack = Stacker.GetStack(point, Position);
        stack.IsNegative = point.Coordinate.PrimaryValue < 0;
        point.StackedValue = stack;

        return stack;
    }
}
